diff options
| -rw-r--r-- | Documentation/kernel-hacking/locking.rst | 4 | ||||
| -rw-r--r-- | Documentation/translations/it_IT/kernel-hacking/locking.rst | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/kernel-hacking/locking.rst b/Documentation/kernel-hacking/locking.rst index c756786e17ae..dff0646a717b 100644 --- a/Documentation/kernel-hacking/locking.rst +++ b/Documentation/kernel-hacking/locking.rst @@ -1277,11 +1277,11 @@ Manfred Spraul points out that you can still do this, even if the data is very occasionally accessed in user context or softirqs/tasklets. The irq handler doesn't use a lock, and all other accesses are done as so:: - spin_lock(&lock); + mutex_lock(&lock); disable_irq(irq); ... enable_irq(irq); - spin_unlock(&lock); + mutex_unlock(&lock); The disable_irq() prevents the irq handler from running (and waits for it to finish if it's currently running on other CPUs). diff --git a/Documentation/translations/it_IT/kernel-hacking/locking.rst b/Documentation/translations/it_IT/kernel-hacking/locking.rst index b8ecf41273c5..05d362b16bf0 100644 --- a/Documentation/translations/it_IT/kernel-hacking/locking.rst +++ b/Documentation/translations/it_IT/kernel-hacking/locking.rst @@ -1307,11 +1307,11 @@ se i dati vengono occasionalmente utilizzati da un contesto utente o da un'interruzione software. Il gestore d'interruzione non utilizza alcun *lock*, e tutti gli altri accessi verranno fatti così:: - spin_lock(&lock); + mutex_lock(&lock); disable_irq(irq); ... enable_irq(irq); - spin_unlock(&lock); + mutex_unlock(&lock); La funzione disable_irq() impedisce al gestore d'interruzioni d'essere eseguito (e aspetta che finisca nel caso fosse in esecuzione su |